Suspending device for trolley wires



Feb. 7, 1928.

F. A. TICE.

SUSPENDING DEVICE FOR TROLLEY WIRES Filed Nov. 5, 1925 l u. alli/Il 62 Eg -NEW g I I flttoz new-- Patented F eb. 7,1928.

' UNITED ures,

PATENT/OFF ICE..-

FRANCIS A. anon, on CINCINNATI; HIO',-ASSIG1\TORTQ=THE ELECTRIC RAILWAY EQUIP- MENT COMPANY, or CINCINNATI, 0HIO;1Aconronnrronor OHIO.

susrnnnme DEVICE FOR-TROLLEY WIRES.-

Application filed November 3, 1925. Serial No. cases.

An object of my invention is to provide a suspending device for trolley wires which is capable of rigid mounting upon a suitable insulating hanger. in such manneras to preclude abrasionanddestruction of the insulating hanger by reason of the vibration of .the wires and suspending devices.

Another objectisto provide a device of g p groove 18 'whereby a flange 19 is provided at the edge of the collar. An abutment late t= thiskind which eliminates the necessity for providing a metal bearing face on theinsulation of a suspending hanger.

Another object'is to provide a device of this kind which takes the form of a complete unit so that one workman is able to make a complete installation of the trolley wire.

Another object is to provide adevice of this kind which maybe conveniently mount ed with a minimum of time andefiortand by. reasonof its unit form cannot be improperly mounted.

Another object is to provide a device 0f thiskind which is adapted tobe disposed at substantially any angle with relation to its hanger and which maybe rigidly secured in any of its positions. v 7

These and other objects areatta-med by t the means described herein and disclosed in vthe accompanying drawi-ngain which:

Fig. 1 is an end elevational view of a device of my invention, mounted upon an 1n- 7 I sulating hanger.

. Fig. .1.

Fig.2 .is a viewtaken on line 2 i2 of Fig. 3 is a .fragmental cross'sect ional view 10f parts of the device of my invention in position prior to completion.

Fig. 4 .is a view of the same, parts showing their relative positions in the completed article. i I i,

Fig. 5 .isa cross sectional view taken on line 5-5 of Fig. 4.

The insulating hanger Tissuspendedfrom support 8 and carries a depending, threaded stud 9. The stud-9 is adapted to engage in H a threadedaxial bore 10 of the. stem 11. The

stem .11 carries a flanged head 1 2 angular in cross section, for example hexagonal as shown in Fig. 5. The lower end of the stem is provided adjacent its ,end with an annular groove 13 whereby there .is provided a knob 14 at theextreme lower end of'the stem.

loose sliding fit. Thewalls 1 of the recess .18.. The-head 12 is at thistime also free to removal of the head 12 from the recess 16.

i ldjacent the opposite or upper side-of the collar 15,.- there is provided an annular or washer 20 has a bore 21 extendingt erethrough of such diameter as to receive the threaded." depending stud 9, on-the hanger. A. peripheral groove 22 in abutment plate 20 divides the edge of the said abutment: plate into a pair of spaced flanges 23 and 24, the latter vof which seats and is freely rotatable 1n the annular groove 18 of the collar 12,

-whi.le thefflange 23, being of greater diameter,. extends .over a substantial portion of the-free "topedge 25 of the collar. By ref erence. to Figs. 2 and A, it will be apparent that the head 12. of the stem .is capableof .a limitedreciprocation, but is not rotatable'in the collarfl5, while the abutment .plate or washerfi20 is capable of free, rotation in the annulargroove the collar but cannot be reciprocated with relation thereto. The disclosure in Fig. 3 shows the parts referred to before theyare assembled, as shown in Fig.

41f The :eollar .15 is originally formedwith the walls of the recess 16 so spaced as to per mit the flange 24 to be lowered into .a position in alignment with the annular groove pass through perforation 26 bounded by the inwardly extending flange 17 of the collar. The. parts,ypositioned as in.Fig. 3, are placed-in a swaging maohine and the collar 15' is sw aged inwardly until the flange 2410f.

abutment plate 20 enters the. annular groove ,182; Thisv swaging operation also reduces the diameter of thereduc'ed bore 26 in the lower .sideof the collar so that the flanges .17 areldisposed beneath the head 12 of the stem 11.. It shouldbe noted that the swaging operation is not performed until the holding ears 27 and compression ring 28 have first been positioned; about the stem 11,

as showngin Figs. 1 and 2. Thedetails of construction and operation. of the holding, ears and compression ring may be of any suitable design. for example as shown in United States Letters Patent No. 1,549,363,

issued=to Lynn J ohnston. These parts are I with a given surface, the cars will be pressed of complementary cars 27 are provided with semicircular vertical grooves 29 for receiving 7 the body of the stem 11 and that semicircular flanges 30 at the base of the semicircular grooves 29 extend into the annular groove 13 at the base of the stem so that the face 31" of the knob or head 15 serves to support the holding ears. The holding ears together assume the form of a truncated cone at their top portions which seats in the compression ring 28 having a tapered bore complementary to the conical portion of the holding cars so that when the stem 11 is screwed upwardly to'bring the collar 15 into abutment toward one another for clamping a trolley wire 32 between the grooves 33 of the holding ears.

' The present invention is directed to the provision of a unitary device provided with suitable self-contained means for precluding abrasion of insulating hangers such as 7.

The operation and advantages of the device are as follows:

The devices are assembled at the factory as shown in Fig. 2 with the collar swaged about the head of the stem and about the loosely positioned about the stem with the compression collar 28 surrounding them.

When a workman is detailed to put up a trolleywire in a mine or elsewhere, he would first put up a series of hangers 7 fastening them to supports such as 8 upon the roof of a tunnel after which he would take a supplyof the supporting units and fasten one upon each of the depending studs 9 on the hangers. v This mounting can only be accomplished in one way so that it is impossible for a workman, however careless he may be, to improperly mount the devices or to neglect to'install any portion thereof. To mount the devices, the stud 9 is caused to enter the 'bore 21in abutment plate 20, passthrough the recess 16 in the collar and into the threaded axial bore 10 of the stem. The collar 15 is then rotated to engage a few threads on stem 11 upon the stud 9 so that the de A series of devices thus mounted are ready to receive the trolley wire 32. The wire 32 is inserted between 55' the grooves 33 of the holding ears which at this time are capable of separation and also of free rotatary movement as a unit, in order to permit alignment of the grooves 33 with the direction of the wire. After the wire is inserted in the grooves 33 and the ears are disposedlin proper alignment, the collar 15 is then rotated, drawing the sleeve 11 and the head 14 thereof upwardly thereby raising the cars 27 and causing compression ring 28 to bind them tightly upon the wire.

Further movement causes the compression ring to raise the collar15 which carries the freely rotatable abutment plate 20 into bind ing abutment with the base of the insulating hanger 7. Further rotation of the collar will cause the collar to move relatively to the abutment plate so that it is impossible for a.

abutment plate without any derogatory ef fect upon the insulating hanger, It will also be apparent that in addition to being incapable of improper mounting, there is also eliminated the possibility of a loss of parts and the waste of time and money in delay of procuring the saidparts when the workman and material are on a job.

What I claim is: 1. In a device of the class described the combination of holding ears for receiving and clamping a trolley wire, means for retaining the ears in position, a stem rotatably mounted between the ears and upon which the ears are suspended, a collar supporting one end of the stem and adapted to impart rotation to the stem when the collar is turned, and an abutment plate revolubly secured on the collar and having a portion extending beyond the edge of said collar, movement of the. collar in one direction serving to bring the retaining means into operative position upon the ears.

2. In a device of the class described the combination of means for receiving and clamping a trolley wire, a stem for support 3. In a device of the class described th combination with an insulating support having a depending threaded stud, of an internally. threaded stem for receiving the stud, holding ears revolubly supported upon the stem, retaining means for clamping said ears on the stem, a collar carried by one end of the stem andadapted to impart rotation thereto for mounting the stem upon the depending stud, and an abutment plate adapted to-receive the depending stud and revolubly secured upon and extending above the collar whereby the abutment plate is moved into. abutment with the insulating support when the stem is moved upwardly of the depending stud for securing the device upon the support.

4;. In a device ofthe class describedlthe combination with a threaded stud having insulating material radiating therefrom, of astem having threaded engagement on the stud a wire receiving and clamping means rotatably supported upon the stem, a collar for rotating the stem" on the threaded stud and adapted to be moved toward the insula-ting material as the stem is rotated,- and abutment means rotatably secured to the.

collar and disposed intermediate the collar and insulating material.

5. In a device of the class described the combination with a stud having insulating material radiating therefrom, of a stem threadedly mountedon the'stud, wire hold-e ing means rotatably supported by the stem, a collar'arranged for joint movement with the stem for moving said collar and stem upwardly of the stud toward the insulating material, and abutment means rotatably mounted in the collar and having asportion' disposed between the collar and insulating material.

6. The combination with contractible means for receiving a cable of rotatable means for actuating the contractible means to clamp and to release a cable and an abutmentplate rotatably connected with the r0- tatable means Whereb said rotatable means may be actuated wit out rotatably actuatingthe abutment late. I

In testimony w ereof, 'I have hereunto subscribed my name this 30th day of October, 1925.

FRANCIS A. Tron. j r 

